Abstract: Electrospray evaporative cooling (ESC). Means for effectuating thermal management using electrospray cooling are presented herein. An ESC may be implemented having one or more nozzles situated to spray droplets of a fluid towards a target. Because the fluid may be electrolytic, an electric field may be established between the one or more nozzles and the target can be operative to govern the direction, rate, etc. of the electrospraying between the one or more nozzles and the target. An additional shielding/field enhancement electrode may also be implemented between the one or more nozzles and the target. A droplet movement mechanism may be employed to transport droplets received at a first location of the target so that evaporation thereof may occur relatively more at a second location of the target. An ESC device may be implemented to effectuate thermal management of any of a variety of types of electronic devices.

Abstract: With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 ?m to 25 ?m, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.

Abstract: An atomizer, provided with an air motor and a rotary atomizing head is mounted on a front side of a housing member. An external electrode assembly, provided with support arms, electrode support members and acicular electrode members is mounted on the outer side of the housing member. A high voltage is supplied to acicular electrode members by a high voltage generator. Electrode support members are covered by a tubular cover member formed of an insulating resin film. An annular gap space is formed between the cover member and electrode support members.

Abstract: A compressed air throttle apparatus comprising at least one throttle valve adjusted by an electric motor, further an electric circuit fitted with contacting elements to alternatively interrupt and close the electric circuit in relation to the throttle valve settings. This throttle apparatus preferably is applicable to a compressed air path of powder spraycoating equipment.

Abstract: Above a substrate holder 1, an ordinary fluid jet nozzle 2 which is capable of injecting drops of a solution having ordinary particle diameters, a fine fluid jet nozzle 3 which is capable of injecting drops of a solution having fine particle diameters which are smaller than the ordinary particle diameters, and a regular reflection laser displacement gauge 4 are disposed. These are attached on the same plate, thereby forming a head 10. The head 10 freely moves in directions X, Y and Z, as an X-axis drive portion 41, Y-axis drive portions 42 and 43 and a Z-axis drive portion 44 operate in accordance with operation commands received from a controller 50 which controls the apparatus as a whole. It is therefore possible to set the head 10 to a predetermined position on a substrate S which is held by the substrate holder 1. Thus, the respective nozzles supply the solutions to any desired positions the substrate S.

Abstract: Blower apparatus has: an air duct having suction and supply openings; a blower fan for creating a flow of air in the duct; and an electrostatic atomizer. The atomizer includes a hollow body exposed to the air in the duct. The body is provided therein with an electrostatic atomization chamber, and has a barrier, an inlet and an outlet. The barrier is put in the duct so that a part of the air flowing in the duct collides with the front of the barrier and thereby pressure-increased air is obtained. The inlet is located at the front side of the barrier so that the pressure-increased air can enter the chamber through the inlet. The outlet is located at the rear side of the barrier so that all the pressure-increased air higher than that of the air flowing in the duct, from the chamber can flow out into the duct.

Abstract: A substrate processing apparatus has a two-fluid nozzle having an inner cylindrical member and an outer cylindrical member. Gas flows in the inner cylindrical member which is a gas passage and the processing liquid downwardly flows in a processing liquid passage constituted of the inner and outer cylindrical members. The gas and the processing liquid are mixed in a mixing area below the inner cylindrical member to generate fine droplets, and the droplets are ejected from an outlet of a lower end of the outer cylindrical member onto a substrate. Charge is induced on the processing liquid by generating an electric potential difference between a first electrode provided in the gas passage and a second electrode provided in the processing liquid passage, to generate charged droplets. In the nozzle, the first electrode is isolated from the processing liquid with a simple construction, and the droplets can be charged efficiently.

Abstract: The invention relates to a powder diffuser nozzle (2) for an electrostatic dusting device, which is designed to be positioned at the end of an applicator gun. The inventive nozzle (2) comprises: a lateral wall (49) which defines a passage that extends from the powder conduit (8) of the gun (3), and a base (56) which seals said conduit (8) at the end thereof. In addition, a port (57) is provided in the lateral wall (49) close to the base (56) in order to connect the powder conduit (8) with the exterior of the nozzle (2). The axis (A1) of the port (57) forms a determined angle (A) with the axis (A2) of the powder conduit (8). Moreover, at least one deflector (58) is provided on the base of the nozzle (56) or on the lateral wall (49) close to said base in order to divert the jet of powder from the conduit (8) along the axis (A1) of the port (57).

Abstract: The present invention includes a nozzle device and method for forming a composite fluid. The nozzle device generally comprises a nozzle portion connected to a main body. The main body includes an inner axial bore extending therethrough. An annular wall extends radially therefore and an annulus extends from an outer perimeter of the annular wall. The annulus and the annular wall define an annular chamber at least partially open to the atmosphere. A portal fluidly communicates the bore with the annular chamber. The nozzle portion includes a converging nose section also having an internal axial bore extending therethrough. An annular collar extends from the nose section and disposes at least partially within the annular chamber. A first tube for transporting a first fluid disposes within the axial bore of the main body and nose section, terminating at an exit port of the nozzle section.

Abstract: An atomizer, provided with an air motor and a rotary atomizing head is mounted on a front side of a housing member. An external electrode assembly, provided with support arms, electrode support members and acicular electrode members is mounted on the outer side of the housing member. A high voltage is supplied to acicular electrode members by a high voltage generator. Electrode support members are covered by a tubular cover member formed of an insulating resin film. An annular gap space is formed between the cover member and electrode support members.

Abstract: A nozzle is provided for use in a dynamic electrostatic air filter, in which the nozzle includes an internal electrode that charges a semiconductive liquid, and includes an external electrode that assists in breaking the liquid into droplets in a predetermined direction. Banks of multiple nozzles are also disclosed, which are separated by a charged “separation electrode” to prevent interference with spray patterns between adjacent banks. An electrostatic fountain is also disclosed which discharges a fragrance, or an inhalable medicine.

Abstract: The invention relates to a method and devices for the production of capillary microjets and microparticles that can have a size of between hundreds of micrometers and several nanometers. The inventive method makes use of the combined effects of electrohydrodynamic forces, fluid-dynamic forces and a specific geometry in order to produce micro- and nano-capsules or fluid jets, single- or multi-component, which, upon disintegrating or splitting, form a significantly monodispersed spray of drops which have a controlled micro- or nanometric size and which can also comprise a specific internal structure, such as, for example, a nucleus which is surrounded by a cortex of a different substance or several concentric or non-concentric nuclei or vesicles which are surrounded by a cortex.

Abstract: An atomization device comprises a conduit containing liquid to be atomized, a spray electrode (1) and a discharge electrode (3). Each electrode is adjacent to a dielectric (5) and they are connected in an electrical circuit (10) to enable a potential difference to be applied between them to atomize the liquid and to generate charge carriers of a first polarity in the proximity of the spray electrode (1) and ions of a second polarity in the proximity of the discharge electrode (3). Some of the first polarity charge carriers deposit on the dielectric adjacent to the spray electrode (1) and some of the second polarity ions deposit on the dielectric (5) adjacent to the discharge electrode (3) so that the atomized liquid is repelled from the dielectric (5) adjacent to the spray electrode (1) and electrically discharged by second polarity ions that are repelled by the dielectric (5) adjacent to the discharge electrode (3).

Abstract: Embodiments of the invention relate to a nozzle assembly for electrostatic deposition comprising a single point nozzle, the single point nozzle being conically shaped and including an apex and a circular base, the circular base including a smaller diameter cylindrical protrusion including a counter bore which connects to a passage leading to the apex; and a nozzle body, in contact with the single point nozzle and including a first through bore, a larger second through bore and a cross drilled port into the first through bore; and a cylindrical electrode, at least partially inserted within the first through bore of the nozzle body and in contact with the counter bore of the single point nozzle, the electrode including a bore mating aligned with the cross drilled port of the nozzle body, and inlets positioned at either end.

Abstract: An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.

Abstract: A corona charge spray gun for dispensing powders for powder coatings. The spray gun includes a housing defining a chamber terminating in an outlet passageway. A high voltage electrode is mounted in the chamber spaced upstream of the outlet passageway and a ground electrode is mounted in the chamber spaced upstream from the high voltage electrode. The ground electrode is selected to have a surface area sufficiently larger than the surface area of the high voltage electrode in order to allow high voltages to be applied to the high voltage electrode without arch discharging occurring in the chamber. An inlet opens into the chamber for conducting a powder-gas mixture into the chamber and the electrodes receive cleaning gases for avoiding powder deposits on the electrodes.

Abstract: The invention provides an electrospray apparatus with an auxiliary electrode, and a method of using.

Abstract: This Universal Flexible Powder Coating Tip/Nozzle (7) will greatly enhance the application of Powder Coating coverage in hard to reach area's do to the ability to bend the flexible tip/nozzle (7) & (10) to reach into those difficult to reach area's. The Powder Coater will no longer have to try to angle a large cumbersome powder Coating gun (1) into tight corners and openings, he only needs to insert the Universal Flexible Powder Coating Tip/Nozzle (7) into these hard to reach areas and bend and turn for proper angle. The uncharged Powder will flow down the Flexible tip/nozzle and receive charging as it travels past the contact at the powder Tip (9) & (10).

Abstract: An electrostatic spray device and a cartridge for an electrostatic spray device that reduce the occurrence of electrically induced emulsion product separation are disclosed. The device and/or the cartridge may reduce electrically induced emulsion product separation by providing a conductive high voltage shield substantially around the product reservoir. Alternatively, the device and/or the cartridge may prevent the product located at the charging location from being in fluid communication with the product reservoir so that the product that is being charged cannot flow back into the product reservoir. The device and/or cartridge may alternatively reduce electrically induced emulsion product separation by minimizing the volume of product between the charging location and the exit orifice of the nozzle.

Abstract: A method and apparatus for dispensing electrically charged particles of a coating material. A source provides the coating material to a coating material dispenser. An electrical supply supplies electrical charge. A first electrode provides charge to the coating material as it is dispensed. At least one second electrode is provided at a location removed from the first electrode. Both the first electrode and the at least one second electrode are coupled to the supply of electrical charge.

Abstract: A powder coating gun with an internal fan and a quick-change powder cartridge. Pressurized air generated by the fan entrains the powder coating material from the powder cartridge and the entrained powder coating material is charged in the ionizing field created by an emitter. The replaceable cartridge contains an inlet line and an outlet line oriented in a manner that allows the powder gun to be positioned in different angles and orientations with minimal risk of a powder spill from the powder coating gun. The powder cartridge contains a lid for supporting an inlet line and a body part constructed of clear or translucent material that allows the user to easily view the color of the powder. An electric power supply is used to power the fan and the emitter. A trigger is present in the handle of the powder coating gun and both controls the speed of the fan and enables the charge to the emitter.

Abstract: The present invention discloses a method for coating nanoelectrospray emitters. The method involves providing a nanoelectrospray emitter body and evaporating an electrically conductive material under conditions effective to form a thin layer of the electrically conductive material onto the nanoelectrospray emitter body.

Abstract: An apparatus for dispersing fluent material comprises a body defining a plurality of orifices arranged around a central axis and a charge injection device arranged on the central axis.

Abstract: The invention concerns a triboelectric sprayer for spraying electrostatic powder paint, comprising a powder intake, an air intake, a conduit transporting air and powder while providing the electrical charge of the powder and, in front of the charging conduit, means for emitting at least an air-powder mixture jet. The air intake is located in the axis of the charging conduit, while the powder intake is arranged laterally and converges in an acute angle with the air intake, in a point located upstream of the charging conduit. The air intake includes of an injector made of electrically conductive material which also constitutes an earthing member of the wall of the charging conduit.

Abstract: A powder spraycoating apparatus includes at least one compressed-air outlet (8) connected to a source (14) of compressed air from which it receives compressed air (15) at such a rate and such pressure that the compressed air at the compressed-air outlet (8) shall detach the powder's rim layer from the powder duct (4) and shall concentrate the powder flow toward the radial flow center and make it swirl, at a site near the downstream end (6) of the powder duct (4).

Abstract: For improving external charging in electrostatic atomizers for conductive coating material and for reducing the structural size of the atomizer, particularly for robot applications, the charging electrodes are embedded in a ring part made of insulating material, which is set directly on the outside of the outer housing or forms a part of the outer housing.

Abstract: A dispensing device for dispensing a material. The dispensing device includes a somewhat cup-shaped interior opening in a first direction in which the material is to be dispensed from the dispensing device. The interior terminates at a discharge edge. The dispensing device further includes a skirt extending from the discharge edge in a second direction generally opposite the first direction. The skirt includes multiple passageways substantially equally spaced around a perimeter of the skirt.

Abstract: A system for spraying a powder coating product includes a rotary sprayhead which is preferably of the type which is electrostatically charged. The sprayhead has a rotary part which can be driven in rotation. A narrow flow space in the sprayhead in the form of a flat ring incorporates a flow chicane forming an impact surface on the path of the coating product.

Abstract: An electrostatic spraying device being configured and disposed to electrostatically charge and dispense a product from a supply to a point of dispersal. This device has a reservoir configured to contain the supply of product and a nozzle to disperse the product. A channel is disposed between the reservoir and the nozzle, wherein the channel permits the electrostatic charging of the product upon the product moving within the channel. A positive displacement mechanism is used to move the product from the reservoir to the nozzle. A portion of the high voltage electrode being disposed between the reservoir and the nozzle is used to electrostatically charge the product within the channel at a charging location. A mixing mechanism may be disposed between the reservoir and the nozzle to reconstitute any product which may have separated. The high voltage contact may be spring biased in direction towards the high voltage electrode.

Abstract: An electrostatic method for increasing the transfer efficiency of spray finishing using lower voltages than are normally required and used with electrostatic spraying. The positioning and construction of ground electrodes (16) behind the air cap (18) helps ensure a clean operation.

Abstract: An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.

Abstract: A system for blowing loose-fill insulation includes a loose-fill blowing machine including a discharge hose. An ionizer is disposed in the flow path of the insulation through the discharge hose, wherein the ionizer reduces the static charge developed on the insulation prior to discharge thereof. A method of reducing static charge developed on loose-fill insulation during blowing is also provided and includes the step of ionizing the insulation in the flow path of the insulation while the insulation is being discharged to reduce the static charge.

Abstract: A high-speed rotary atomizer for applying powder coating includes a housing to the front end of which a bell disc is rotatably mounted. Bell disc is driven by a motor arranged inside housing. At least one powder supply channel passes through housing, and emerges at the front of housing. This channel contains an acceleration jet in which the coating powder particles are accelerated to a higher velocity which is maintained over at least a certain distance. The increased velocity, preferably supported by acceleration air forming a surface layer, prevents coating powder particles from being deposited on the walls of powder supply channel. In this way an insulating section is formed by which a backflash of the high voltage used to ionise the coating powder particles, from the internal electrode of the high-speed rotary atomizer towards the powder supply, is prevented.

Abstract: A powder spraying gun generates a desired pattern of electrostatically charged particles for coating a workpiece without rotating parts or particle deflectors. The powder pattern is generated with a funnel-shaped output in conjunction with air introduced into a powder charging chamber of the gun in a tangential swirling motion. The swirling air is additionally used to purge agglomerated powder particles from the charging electrodes in the charging chamber. The charging chamber surface is fashioned from material exhibiting low friction or high resistance to powder impact fusion.

Abstract: An anti-electrostatic discharge spray gun apparatus and method for preventing crystallization of particles formed as a result of electrostatic discharge from forming on a spray gun nozzle and an associated pair of oppositely charged electrodes disposed on the gun. The apparatus has a housing; a nozzle attached to the housing for dispensing gas; a device for dispensing a gas through the nozzle; a device for electrostatically discharging a gas dispensed through the nozzle; and a device for restricting the flow of a gas through the nozzle. The device for dispensing and restricting flow of a gas through the nozzle may be either a bypass piping having a flow control means or a stopper that operates to provide a constant but low volume flow of an inert gas such as nitrogen to the nozzle to prevent particle build up or crystallization from occurring.

Abstract: A liquid fuel injection nozzle to supply atomized droplets of fuel to a combustion chamber arrangement in a gas turbine engine combustion system. The fuel droplets leave the passage through its upper end defined by an annular sharp edge of a tubular electrode which can be electrostatically charged for the sharp edge to impart electrostatic charge to the fuel droplets as they pass the edge.

Abstract: A rotating powder bell cup electrostatic spray assembly is provided. This assembly includes a bell cup body removably mated coaxially by screw threads to a first deflector, the assembly rotatably affixed to an air/powder supply. Preferably, the bell cup and first deflector are constructed from an insulative, non-stick material. The assembly includes unique, streamlined, preferably teardrop shaped, paddle deflectors. All corners around which powder passes are rounded, thereby achieving streamlined flow and little or no powder accumulation, as well as improved efficiency, ease of assembly and disassembly, and ease of cleaning for such devices. A preferred non-stick material of construction of the bell cup and first deflector is polytetrafluoroethylene.

Abstract: A coating apparatus includes: a coating gun to which a voltage is applied; a coating hose for leading a coating material to the coating gun; a piston provided so as to be capable of water-tightly sliding in the coating hose; and driving means for moving the piston in the coating hose. The coating material is injected into a front part of the piston and the piston is moved toward the coating gun at the time of coating.

Abstract: An electrostatic method for increasing the transfer efficiency of spray finishing using lower voltages than are normally required and used with electrostatic spraying. The positioning and construction of ground electrodes (16) behind the air cap (18) helps ensure a clean operation.

Abstract: A spray gun includes a handle portion and an extension portion. A nozzle is connected with an outer end of the extension portion. An electrode assembly is disposed in the extension portion to establish an electrical field to electrostatically charge particles of coating material. A coating material flow control member and a purge air flow control member are disposed on the handle portion. Operation of either one of the two flow control members actuates a membrane switch assembly. Operation of the purge air flow control member directs the flow of air to the coating material passage in the extension portion to remove excess coating material from the passage and from the nozzle. Different size hand grips may be mounted on the handle portion of the spray gun to accommodate operators having hands of different sizes.

Abstract: A spray gun coating objects with a coating material. Its barrel (2) and its grip (4), at least their basic shapes, are one integral structure (6).

Abstract: The invention relates to an electrodeposition device, having two or more emission electrodes that can be connected to a common electrical supply line and an electrically insulating electrode holder, wherein the electrode holder is made of plastic and receives the electrodes, the electrical connections thereof and a contact surface for the connection to the electrical supply line.

Abstract: The multimedia and scent storage medium described herein comprises a multimedia storage region for storing multimedia information; a scent storage region for storing multiple scents; scent identification information for identifying which scents are stored in the scent storage region; and scent recovery information stored in the multimedia storage region for sequencing recovery of scents stored in the scent storage region to coincide with audio and/or video information stored in the multimedia region. Variants of the multimedia and scent-bearing medium described herein can have electrostatic scent release systems and/or capillary tube scent release systems. The integrated system described herein comprises a multimedia and scent storage medium and a multimedia player and scent recovery system for use in conjunction with the multimedia and scent-bearing medium.

Abstract: This invention provides equipment for fabricating partitioning ribs of a plasma display device. The equipment comprises a head, a driver, an X position sensor and a Y position sensor, a laser displacement sensor for detecting the distance of the head from a glass plate or substrate, a motor and a motor driver for moving the head relative to the glass plate, and a CPU for controlling various circuits. The head has nozzle members for ejecting partitioning rib grains by an electrostatic ejection method or ink jet technology to form partitioning ribs. The driver controls the volume of the partitioning rib grains ejected from the head. The X and Y position sensors detect the position of the head relative to the glass plate within a plane.

Abstract: A rotary atomizer including a bell element having a paint tube, a deflector having a conical distribution surface opposite the paint tube outlet, including a tip portion within the paint tube, directing paint to a paint overflow surface through an annular conical channel adjacent the outer edge of a nonconductive end face, an annular electrostatically charged surface surrounding the outer edge of the end face generating an annular electrostatic field and an axial electrode having a sharp distal end in the plane of the annular electrostatically charged surface generating a second axial electrostatic field.

Abstract: A bell cup includes an interior defined by an axially rearward metal back region, an axially forward metal discharge edge, and a metal side region extending from the back region toward the discharge edge and terminating at the discharge edge. The back region includes a port having a forward end through which coating material to be atomized is supplied to the interior, and a metal intermediate portion between the forward end and the side region. The intermediate portion is oriented axially further away from the discharge edge than the forward end is axially from the discharge edge.

Abstract: A spraycoating apparatus with a tubular, hollow affixation element (16) to affix an adapter (8) to a casing (2), a coating-material tube (14) running through the hollow affixation element (16) into the casing (2).

Abstract: A plurality of unconventional negative tribo-charging materials are described for use as the powder contact surfaces in tribocharging and corona powder spray guns, gun components, and powder delivery system components. The invention also provides a short barrel tribo-charging powder spray gun having an interchangeable powder contact insert and nozzle, with turbulence inducing air jets. The invention further provides novel tribocharging and corona gun designs. Improved powder coating systems are made possible wherein, for example, negative tribo guns can be utilized with negative corona guns to coat different parts of the same workpiece in a powder coating system. Also provided is an inside-out configuration in which pressurized air directs powder coating material outward towards a charging surface. Additional configurations provide air jet induced tribocharging and conventional tribocharging portions combined in a single gun.

Abstract: The present invention is directed to a flow splitter that includes an outer fluid conduit for receiving an incoming fluid flow that is the bulk flow of effluent from a liquid chromatographic column, flowing at an input flow rate. The flow splitter further includes an inner fluid conduit coaxially mounted within the outer fluid conduit so that a portion of the incoming fluid is split off into the inner fluid conduit and flows into the input end thereof. The inner fluid conduit extends beyond the exterior of the outer fluid conduit to provide an output fluid flow having an output flow rate that is less than the input flow rate. The outer fluid conduit further includes a fluid outlet that provides an outlet for the portion of the incoming fluid that is not split by the inner fluid conduit. A restriction valve can be coupled to the fluid outlet to finely adjust the output flow rate. The input end of the inner fluid conduit is positioned so as to be substantially free of turbulence from the fluid outlet.

Abstract: A power supply for an electrostatic powder spray gun is formed in the shape of a hollow cylinder with a central passageway therethrough. A powder tube is slideably inserted through the central passageway of the power supply thus providing a more compact and symmetric spray gun profile. The power supply may be a voltage multiplier, for example.